1. < BackNext >PreviewMain Chapter 3 Properties of Matter Preview Section 1 What Is Matter?What Is Matter? Section 2 Physical PropertiesPhysical Properties Section 3 Chemical PropertiesChemical Properties Concept Map

2. < BackNext >PreviewMain Motivate Demonstration: Air is Matter p. 78

3. < BackNext >PreviewMain Section 1 What Is Matter? Chapter 3 What You Will Learn All matter has volume and mass. Volume is the amount of space taken up by an object. Mass is a measure of the amount of matter in an object. Weight is a measure of the gravitational force exerted on an object.

4. < BackNext >PreviewMain Section 1 What Is Matter? Chapter 3 Matter Matter is anything that has mass and takes up space.

5. < BackNext >PreviewMain Section 1 What Is Matter? Chapter 3 Matter Matter can be described in terms of its: 1. volume 2. mass 3. weight

6. < BackNext >PreviewMain Section 1 What Is Matter? Chapter 3 Volume the amount of space inside a three- dimensional matter SI unit for volume: liter (L) and milliliter (ml)

7. < BackNext >PreviewMain Section 1 What Is Matter? Chapter 3 Volume: Liquids meniscus: the curve at a liquid’s surface For most liquids, volume should be measured from the lowest point of the meniscus.

8. < BackNext >PreviewMain Section 1 What Is Matter? Chapter 3 Volume: Regular Solid SI unit for solid volume: cubic meters (m 3 ) and cubic centimeters (cm 3 ) volume of regularly shaped objects: l x w x h

9. < BackNext >PreviewMain Section 1 What Is Matter? Chapter 3 Volume: Irregular Solid volume of an irregularly shaped solid: water displacement.

10. < BackNext >PreviewMain Properties of Matter Chapter 3 Mass versus Weight

11. < BackNext >PreviewMain Standards Check: Chapter 3, Section 1

12. < BackNext >PreviewMain Motivate Demonstration: An Accurate Description p. 84

13. < BackNext >PreviewMain Section 2 Physical Properties Chapter 3 What You Will Learn Examples of physical properties are melting temperature, density, hardness, thermal conductivity, and electrical conductivity. Density is the amount of matter in a given space or volume. A physical change does not change the identity of the matter that undergoes the change. Melting, freezing, cutting, bending, and dissolving are physical changes.

14. < BackNext >PreviewMain Section 2 Physical Properties Chapter 3 Identifying Physical Properties A physical property of matter is a characteristic that can be observed or measured without changing the matter’s identity. Examples of physical properties: 1.Density 2.Thermal conductivity 3.Ductility 4.State 5.Malleability 6.Solubility

15. < BackNext >PreviewMain Properties of Matter Chapter 3 Textbook p. 85

16. < BackNext >PreviewMain Section 2 Physical Properties Chapter 3 1. Density SI unit for density of solids: grams per cubic centimeter (g/cm 3 ) SI unit for density of liquids: grams per milliliter (g/ml)

17. < BackNext >PreviewMain Section 2 Physical Properties Chapter 3 2. Thermal Conductivity

18. < BackNext >PreviewMain Section 2 Physical Properties Chapter 3 3. Ductility

19. < BackNext >PreviewMain Section 2 Physical Properties Chapter 3 4. State

20. < BackNext >PreviewMain Section 2 Physical Properties Chapter 3 5. Malleability

21. < BackNext >PreviewMain Section 2 Physical Properties Chapter 3 6. Solubility

22. < BackNext >PreviewMain Practice: Physical Properties water bottleseltzer tabletclay density thermal conductivity ductility state malleability solubility

23. < BackNext >PreviewMain Section 2 Physical Properties Chapter 3 Physical Changes: No New Substances A physical change is a change of matter from one form to another without a change in chemical properties. Physical changes include dissolving, cutting, bending, freezing, and melting. Physical changes do not change the identity of the matter. Ex:

24. < BackNext >PreviewMain Section 2 Physical Properties Chapter 3 Physical Changes vs. Physical Property physical change = form of matter changes physical property = describes

25. < BackNext >PreviewMain Standards Check: Chapter 3, Section 2

26. < BackNext >PreviewMain Motivate Demonstration: Physical or Chemical p. 90

27. < BackNext >PreviewMain Section 3 Chemical Properties Chapter 3 What You Will Learn Examples of chemical properties are reactivity and flammability. A chemical change is the process by which a substance changes into a new substance. Chemical changes usually liberate or absorb heat.

28. < BackNext >PreviewMain Section 3 Chemical Properties Chapter 3 Chemical Properties A chemical property describes the ability of a substance to change into a new substance. types of chemical properties: 1.reactivity 2.flammability

29. < BackNext >PreviewMain Section 3 Chemical Properties Chapter 3 Chemical Change A chemical change is a change that occurs when one or more substances change into entirely new substances with different properties. The signs of a chemical change include a change in color or odor, fizzing and foaming, sound or light being given off, and changes in temperature. When matter undergoes a chemical change, its identity changes. So most chemical changes are irreversible.

30. < BackNext >PreviewMain Section 3 Chemical Properties Chapter 3 Chemical Change vs. Chemical Property chemical change = change into new substance chemical property = describes

31. < BackNext >PreviewMain Properties of Matter Chapter 3

32. < BackNext >PreviewMain Section 3 Chemical Properties Chapter 3 Physical Versus Chemical Changes Physical Properties matter’s identity does not change observable ex: color, odor, shape, conductivity, density, etc. Chemical Properties matter’s identity changes not always observable ex: reactivity and flammability describes matter

33. < BackNext >PreviewMain Standards Check: Chapter 3, Section 3

34. < BackNext >PreviewMain Lab: Classifying Substances p. 96-97